Hi,
For the record I am using a Compaq Presario AMD Athlon(tm) 64 Processor 3300+, 2411MHz/1.93 GBs RAM, running Windows Xp Home, SP3., with IE8.
All my security programs, firewall and Windows Explorer are updated and fully patched.
Starting yesterday every time I try to check my local weather by using 'Weather Bug' I get a message from Avast saying 'Trojan Horse detected and blocked'. I have been using Weather Bug for years and never had this happen before.
Any chance this could be a false positive?
Here is a photo of the actual warning:

Any information would be appreciated.
Thanks and regards,
2harts4ever