[Wine]Is anyone using X.org instead of XFree86 implementation of X Windows?

[sschaefer1 at woh.rr.com]

I just upgraded my machine from Slackware 9.1 (using XFree86) to Slackware 10.0 which uses X.org instead. A simple notepad.exe gives errors when started. This did not have this problem under the previous setup. Is anyone using X.org ???