It sounds like a mouse driver problem.  I would suggest you first try reverting to a classic mouse on a cable to see if standard mouse wheel actions work. Pegasus Mail uses standard Windows mouse drivers from companies such as Microsoft and Logitech.  The fact that no one else is reporting this problem suggests it is occuring on few if any other user PCs. The number of 64 bit Windows machines is growing rapidly. So for instance are you on the latest version of the vendor drivers for 64 bit? Also are the other mouse actions such as left and right click still working?

Martin

Pmail 4.63 build 325
Whacom tablet and wireless mouse
Windows XP 64bit

Tablet properties mouse configured as 'mouse' (this tablet also supports a wireless pen stylus; the mouse can be configured to emulate the stylus as well as mouse mode)

All of a sudden the mouse wheel fails to scroll when turned, but only in Pmail. All other programs it works as advertised. Is there something that can be tweaked in the Pmail options that affects its function in Pmail alone as opposed to configuration of the tablet and mouse at the tablet's configuration options?

Not life threatening by any means but would be nice to get that functionality back.

Thanks.