Reformat and Reload of Hoster 3.321a & 5.06

[doransdome]

I have been happily running Hoster 3.321a for quite some time with no problems, on a windows 7 system with plenty of memory etc. Recently though it has been just shutting down mid song. Sometimes it just quits, other times the screen flashes that Hoster performed an illegal function and must shut down. Just Hoster, not the laptop. I restart Hoster and all is well for a time. This happens 3 to 6 times during a 4 hour show. Any idea why??

As a solution, I am planning on upgrading but want to reformat and do clean install of windows 7, then load the new Hoster. I read on another post that if I have purchased the upgrade I will not need to reload the old version but I am not sure that extends back to 3.321a. Should I contact admin and remove 3.321a before I reformat or is it ok to just wipe the drive and do the clean install, then load the new upgrade? Any one know that answer or have a suggested order in which to do things?

Thanks a lot.
Doransdome