5.2c did indeed cause some false positives on some virus scanners
6.0 currently does NOT raise any anti virus warnings..

pid does NOT contain malware/spyware/trojans/antiviruses

and really, you should all upgrade to v6, its better, has a hell of a lot more in it and has a lot more signatures (so higher chance of detection)... v5 is redundant now...

we also make a point of scanning v6 releases using virustotal.com from now on...