Infinite quick scan time

[CaptainSlocum]

In the past MWB has taken about 10 mins to do a quick scan. Suddenly it started to never finish (last scan went up to over 7 hours and over 7 million objects scanned before I stopped it (see log below). I uninstalled and downloaded and installed MWB again - same problem. I have not altered the scanner settings, all this is on drive C. The scanner shows a weird non-existent file path after a while as well (eg. Currently scanning:

C:\DOCUMENTS AND SETTINGS\\ADMINISTRATOR\START MENU\PROGRAMS\STARTUP\Administrator\Administrator\Administrator\Administrator\Administrator\LogMeInRemoteUser\Default User\Default User\ALL Users WINDOWS\Shortcut to Documents and Settings.Ink) . I close down Avira while it scans and all other programmes. I have Windows XP SP2. Have I got a virus that has hijacked Malwarebytes and sent it into a loop?

Malwarebytes' Anti-Malware 1.50.1.1100

www.malwarebytes.org

Database version: 6283

Windows 5.1.2600 Service Pack 2

Internet Explorer 7.0.5730.11

06/04/2011 18:14:56

mbam-log-2011-04-06 (18-14-56).txt

Scan type: Quick scan

Objects scanned: 7640486

Time elapsed: 7 hour(s), 5 minute(s), 13 second(s)

Memory Processes Infected: 0

Memory Modules Infected: 0

Registry Keys Infected: 0

Registry Values Infected: 0

Registry Data Items Infected: 0

Folders Infected: 0

Files Infected: 0

Memory Processes Infected:

(No malicious items detected)

Memory Modules Infected:

(No malicious items detected)

Registry Keys Infected:

(No malicious items detected)

Registry Values Infected:

(No malicious items detected)

Registry Data Items Infected:

(No malicious items detected)

Folders Infected:

(No malicious items detected)

Files Infected:

(No malicious items detected)

[Mainard]

Hello CaptainSlocum,

Please update your database by going to the update tab and click the 'Check for Updates' button.

Then please run a quick scan and post back the log that it generates.

Thank you very much!