Hoster and other program problems

[wb6bna]

Last night while I was running my karaoke gig, when I opened the search box in 5.11 and minimized the search box it totally dissappeared from the screen even the taskbar. I had to continue to open it everytime I did a search. When I minimized it it would go away again. I also had some singers who sing from Youtube at which time I minimize Hoster completely. Then the entire program disappears from the desktop, including the task bar. If I ctrl-alt-del it, task manager shows that it is running, but I can find it nowhere. I have to either log off or restart to bring it up again. Any suggestions?

I also uninstalled 5.11 from my laptop and when I tried to install 5.05 I got the error msg that it has already been installed on 2 computers. I booted off my backup hdd and removed it there and still got the same message. I finally booted my desktop on the 2nd drive and removed hoster then I was allowed to reinstall it on my Laptop. What goes with this? I have had this problem for many years now? I am also not able to reinstall microstudio or khpro. I just tried to run Songverter and got the message that my serial no does not match their records. I did the upgrade setup on it now it is okay?? Thanks Alan