Borland Builder 5 debugger and Windows XP

When I updated to Windows XP I installed my Builder 5 (with all service
packs). The Builder debugger did not work properly. I could not debug down
more than 1 level into the code. I upgraded to Builder 6 and the problem wen
t
away, but I really need to user Builder 5 right now. I am currently running
Builder 5 on a virtual machine (Windows 2000) but it is really slow to
develop this way. Do you know if any of the Window updates have helped to
resolve this problem.  I don't believe any of the Builder 5 updates fix this
.
Any help would be appreciated. Thanks in advance. Alex