Error when restoring database

Hi guys!
I wonder if this happened to you... I searched and found nothing related to this problem...
When I try to restore a database in SQL Server Management Studio on a 2005 database engine I receive the message:

Cannot show requested dialog.

ADDITIONAL INFORMATION:

Could not load file or assembly 'SqlManagerUI, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A) (mscorlib)

Strong name validation failed. (Exception from HRESULT: 0x8013141A)

Sometimes I receive the same error when starting Management Studio for the connection dialog...

Thank you!

This error means that one or more of the SQL DLL's has been corrupted such that the binary data in the file no longer matches the file that was signed by Microsoft.

Most common causes of this kind of corruption:

1) Viruses or other malware
2) File system corruption
3) Failing hard drive|||I'm seeing this error too. I a reinstall indicated?|||

I have got the same ERROR message too.

Configuration:
Microsoft SQL Server Management Studio 9.00.2047.00
Microsoft .NET Framework 2.0.50727.42
Hardware Disk Drive HTS721080G9SA00

bg,
Selim

|||

Try rerunning the setup and repair all the components (Dont chose for a custom install)
Hope this helps.

Thanks,
Kuntal

|||Have you tried to accessing the same from another client's machine?|||

I have reinstalled Win XP Pro, then installed SQL 2005 Developer Edition + SP1
and now works fine :)

thnx,
Selim

|||Oh if you think that was easy then so be it, if it occurs next time then make sure to check.