any suggestions preventing crash to desktop?

I have an assembly made out of 40 or so parts (made in solidworks 2003 sp2.
All I want to do is change a hole created with hole wizard, from being a
straight through hole into a 100 degree c'sunk hole. I've tried 2 methods to
accomplish this: I've tried editing the part while still in the assembly in
witch it appears. I then right click on the hole that I wish to change and
select edit definition. Doing so brings up the opportunity to change the
hole spec, I switch it to countersink by selecting the tab, then solidworks
looks like it's going to do what I ask, but instead, after about 15 seconds,
or so, it crashes to desktop. The second method that I've tried was to do
the same procedure as before, with the only difference being that instead of
editing the part that contains the holes that I want to change, while still
in the assembly, I open the part with the holes in its own window, close
down the assembly that it appears in, then edit the hole's definition in the
newly opened window, but the same ctd happens (clicking on any of the tabs
in the edit definition dialog box makes sw2003 sp2 crash to desktop. Any
suggestions, that help prevent me having to delete the whole pattern, would
be appreciated.

 

Any chance of updating to SP5.1? Don't know if that will fix it, but I
would certainly try that first.

WT

 

solidworks is weird, because I've done the procedures stated below multiple
times; 2 days in a row. Suddenly on the 3rd day I repeat the same procedure
that I've done the earlier 2 days, and now it does what I wanted it to do in
the 1st place. When Solidquerks crashed trying to edit the hole's
specifications before, I restarted my computer, thinking that doing so freed
up memory, but no such luck, it still crashed. Finally on the 3rd day it
finally did it without crashing.

 

Too weird! Did you get up one the other side of the bed that morning???

WT

 

who knows