hoster demo
 

i just deleted the hoster 4.2 demo, and downloaded 4.3,on my test pc when i did it say" already installed would you like to replace it ?" since i have the old full version on my show and back-up laptops can i still dowload the demo version on my back-up laptop, w/o any problems..?:?

Yes

just maybe a coincidence, but i did it 2x, when i dowloaded the 4.3 demo my cd/dvd quit working, so i hooked up an external, and that also quit, i tried updating the driver " no driver found " on both of them ( not even showing on device mgr." , so i did a system restore,cd/dvd/external was back on track, re-load the demo same thing, they both( cd/dvd/ext. quit.)
did another system restore, again back on track..but anyway no big deal, just asking what caused it to happened..:?:?

There is another thread with an exact step by step "fix" for this. It doesn't happen to everybody but does to a few. Probably a configuration difference.
This is it. http://forum.mtu.com/showthread.php?t=10482 Some it has helped and some it doesn't. Not sure what yet to do for those that it doesn't work for.

yeah, i read the threads, had the same problem like the guys had ,when i open device mgr, both of my cd/dvd/external has a yellow exclamation point but anyways, everything is working fine now,"thanks to system restore" back to the old hoster version..:):)