Possible virus or False positive?

I’m using Win XP fully patched on a laptop.

I was still getting virus alarms even after getting the update. So yesterday uninstalled Avast then reinstalled a fresh copy and did a boot scan. No Alarms or problems were found.
Turned laptop on this morning and got these 3 alarms. Both files were put in the virus chest. Then did a scan of K:\AutoRun.inf in the virus chest and got an alarm. K:\ is an external Hard Drive
I have Never gotten an alarm before the troubles started with K:\AutoRun.inf or have any indication of a virus in over a year that I have used Avast Home.

12/5/2009 9:08:38 AM George 196 Sign of “BV:AutoRun-S [Wrm]” has been found in “K:\AutoRun.inf” file.
12/5/2009 9:44:48 AM George 3788 Sign of “Win32:Rootkit-gen [Rtk]” has been found in “K:\RECYCLER\S-5-3-42-2819952290-8240758988-879315005-3665\jwgkvsq.vmx” file.
12/5/2009 9:45:03 AM George 3788 Sign of “BV:AutoRun-S [Wrm]” has been found in “K:\Autorun.inf” file.

Thanks for any help or insight

George

did you submit the files to avast (from the Chest) and virus total http://www.virustotal.com/ ?

No will do that now