There are no alt tabbing problems.
An extra problem though is if you are running a windowed mode bmax app and then run a fullscreen dx app, the windowed mode app does not know if it has been corrupted or not and the graphics are lost.
This is fixable but so far it hasn't been fixed.
An extra problem though is if you are running a windowed mode bmax app and then run a fullscreen dx app, the windowed mode app does not know if it has been corrupted or not and the graphics are lost.
This is fixable but so far it hasn't been fixed.