You'd need to post the details of the Illegal Operation message(s), and what you're doing when they occur, for anyone to be of much help



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Steve W,

Thank you for using the DellTalk forum.

Try using MSconfig to find out if another program
is causing the problem. You should also run a system
diagnostics, to make sure you don't have any bad memory
in the system.

Troubleshooting the Startup Group

Left-click on START | RUN.
Type in "msconfig" in the "Open" dialog box and left-click on "OK."
When the "System Configuration Utility" window appears, the "General" tab will be visible. Left-click on "Selective Startup."
Remove the check marks from each choice except "System.ini," by left clicking on the check marks.
Click the Startup tab.
Uncheck every entry except (SystemTray)
Left-click on "Apply" and then left-click on "OK."
A message will appear stating that "For the changes to take place, the system must be restarted." Left-click on the "OK" button, and the system will begin the restart.

If the problem stops, then try using the steps below, to isolate the program that
is causing the problem.
Repeat steps above, but instead of un-checking the entries, re-check one entry at a time until you have identified the category that is the cause of the problem.
After you have isolated the application, utility, or device driver that is causing the problem, you will be able to proceed with further troubleshooting. One of the easiest methods to attempt a resolution is to reinstall the problematic application or device driver. The entry causing the problem can be left disabled if it does not affect system operation.

Thanks for your suggestions. I will get started on it right away. In the meantime, here are some details from a couple recent Illegal Operations...
WAOL caused an invalid page fault in
module MANCORE.DLL at 0167:6230c31a.
Registers:
EAX=00000000 CS=0167 EIP=6230c31a EFLGS=00010246
EBX=00000000 SS=016f ESP=006adb0c EBP=006adb10
ECX=006af840 DS=016f ESI=20262073 FS=4947
EDX=bff76855 ES=016f EDI=00000000 GS=0000
Bytes at CS:EIP:
8b 76 08 eb eb 8b c6 eb 02 33 c0 5e 5d c3 33 c0
Stack dump:
059e4c80 006adc24 6230bc5a 059e4c80 006aded4 059e4c80 ffffffff 000006d3 077e2a27 00009f04 ffff3e1f 00000000 00000000 00000000 00000000 00000000
and here's the other one...
EZPHOTO caused a general protection fault
in module KRNL386.EXE at 0002:000064aa.
Registers:
EAX=56ff8fc1 CS=014f EIP=000064aa EFLGS=00000603
EBX=00001609 SS=4ef7 ESP=00008882 EBP=0000888a
ECX=00008fbe DS=0177 ESI=00008fbd FS=0000
EDX=00000177 ES=0177 EDI=0000ffff GS=0000
Bytes at CS:EIP:
f3 a4 fc 1f 8b 5e 04 8b 46 06 01 07 5e 5f c9 c2
Stack dump:
8fbe015f 8fc10000 6517889e 70421609 01770000 00000011 8fbe8fbe 630288bc 000015ff 00000177 0000016f 01770000 00000011 016f0003 8a620177 0000537e

Thanks so much!
Steve

Steve W,

Microsoft has some KB articles on the WAOL error.
I will list them below, you may want to take a look at
them.

Err Msg: WAOL Caused an Invalid Page Fault in Module MSVCRT.DLL (Q191621)
After you type your password to log on to America Online using the preview version of the America Online 4.0 software on the Windows 98 CD-ROM, you may receive the following error message: WAOL caused an invalid page fault in module

Indications of Virus Infection from the W32/KRIZ Viruses (Q282997)
You may receive an error message related to the Krized.tt6 file. The error message may look similar to any of the following error messages: waol caused an invalid page fault in module kernel32.dll waol caused an invalid page fault in module

Error Message When You Browse Internet or Read E-mail with AOL (Q298888)
When you connect to the Internet by using America Online (AOL), and you attempt to browse the Internet or read e-mail, you may receive an error message similar to the one of the following: WAOL caused an Invalid Page Fault in module WINMM.DLL.

Error Message: The Page Cannot Be Displayed (Q241344)
When you try to view a Web page, you may receive one of the following error messages. Internet Explorer 5 and Later Internet Explorer 5 and Later The Page cannot be displayed. The Page cannot be displayed. After connecting to America

Troubleshooting America Online in Windows XP (Q306478)
After you upgrade from Microsoft Windows 98, Microsoft Windows 98 Second Edition, Microsoft Windows Millennium Edition (Me), Microsoft Windows NT 4.0, or Microsoft Windows 2000 to Windows XP, you may receive one of the following error messages in

Setup Does Not Detect Multiple Display Adapters Correctly (Q191622)
When you install Windows 98 or Windows Millennium Edition (Me) on a computer with multiple video adapters, Setup may not detect your video adapters correctly.

Frequently Asked Questions About AOL in Windows Millennium Edition (Q299829)
This article lists the most frequently asked questions about using America Online (AOL) with Windows Millennium Edition (Me).

*Mancore.DLL is an AOL file, so it seems the program is having problems with itself. You should uninstall AOL, totally delete all AOL folders and files, and remove any AOL registry entries. Then install a fresh copy of AOL, and see if that solves the problem.