The 1004 error has been a real mess to solve. The best I am aware of is it involves using the Access with and two different Databases; Songs and Singers.
We have gone through the code several times, and have corrected some DB related problems each time... that Visual Studio .NET does not report as problems!
We found and fixed more in 4.02. We have used Access DB in Hoster since 2001, and never saw this problem before adding the Singers.mdb.
We are testing 4.02 Beta 5 tonight.
As was said above, if your Windows isn't right, you "MAY" have problems. Not trying to shift the blame, but point out the fact that if anything is off base in Windows, it makes it very hard for Hoster 4.x to run correctly.
We have pushed the limits and are using all the latest and greatest technology available to us as APP developers.
Yesterday we found a Microsoft bug that was giving our Beta Testers a lot of headaches when using dual-displays... out of sync lyrics, crashing songs in CUE status, lyrics sweeping in the Preview display in Hoster behind or ahead of the Show Display, and a few others. We found a way around this, and it is now being tested. Keep your fingers crossed!
We WILL solve the problems... always have, always will.
Vista has added instability never seen before.
When you report a problem, please give us as much facts as you can. and please remember, emotions don't solve problems... facts do. If everyone posts facts, eventually the root cause will surface.