My System:
Skystar 1 (TT Premium) in Hard Mode
Windows XP
Progdvb 3.85.3

I never got Problems with Progdvb. Now when I click "Audio and Video" in the Settings Progdvb will crash immediatley.
I have installed this Version because of RelictEPG.
When i try a newer (actual) Version of Progdvb it's the same.
When i run the Skystar 1 in softmode it won't crash, but i want to run the card in hard mode.

Is there someone who can help me?

Suppose you're talking about ProgDVB 4.85.3.

What exactly do you mean with crashing, do you get a crash message (please post), or does ProgDVB freeze (in case give it some time to recover, up to 5 minutes), or what else happens, exactly?
Do you use a language file?
What localisation of XP and what SP do you have?

BTW, sometimes trouble like this relates to a corrupt ProgDVB.ini, specially if copied from a different version. Try to delete, redo all settings then.

Of course it is 4.85.3, sorry.
It crashes immediatley. I don't use a language file.
My Windows XP is german with SP2.
I have deleted the whole Folder, reinstalled it, to get everything new.
I haven't installed any plugins.
I tried the newest Version.
It's always the same.

What VGA card are you using, is it an AGP or PCI-e?

Does the original application DigitalTV work?
What driver do you use?
Should be from software / driver package 2.19h by Technotrend.
If it's not, use their driver cleaner and remove any possible copy of the driver from your disk, before installing a new one. Don't allow an automatic driver install.

Are you able to enter 'device optios' in ProgDVB? Try to set to overlay or surface manually, activate software scaling, don't activate BOB. After changing, close and restart ProgDVB.

I use the TT 2.19h driver, i already have used the Drivercleaner.

I am able to go to the device options, i have changed the things you mentioned, but it's the same.
This came from one day to another, i haven't changed the system for three years.

Well, it seems, you have to look for other reasons then, outside of ProgDVB, Nexus and DVB driver.

Reinstall VGA driver.
Reinstall DirectX.
Look for any kind of networking trouble.