Network problem: Since we have implemented GuiXT scripts our users have intermittantly been getting a SAPWR RFC error, several times a day, in all different SAP screens. There is no obvious pattern that we can determine; it will happen during a process once, and then not the next time. The user can just click OK, immediately try the process again and this time it works. Apparently the system is momentarily unable to access the Web Repository. Can you please advise?

This is an intermittant network problem which we are unable to diagnose at a distance simply from the facts given.
If you have not already done so, please use the VersionNumber statement in the "session" script so as to decrease the number of RFC calls.
Additionally, in a future GuiXT version we will add a guixt.ini option to retry a failed RFC a specified number of times.