I have a customer with DELL Vostro 3550 laptop which keeps hanging for a few seconds especially while surfing the web and scrolling the web browser page.

I've used the DPC Latency checker tool to verify that this is indeed the cause.  Disabling hardware devices does not fix the problem.

I've updated to the latest BIOS vesrsion (A09) without success.  On an older Vostro 3500 laptop with similar problems, updating to BIOS version A10 fixed the problem.

Is there any other solution?  When will a new BIOS version be introduced to fix this problem?

Jonathan