Firefox takes almost forever to show up

[hulvi]

Hi,

this is my first post. Unfortunetaly the search doesn't work, or i don't know how to interprete this:

Could not delete old search id sessions
DEBUG MODE
SQL Error : 1153 Got a packet bigger than 'max_allowed_packet' bytes
DELETE FROM uvnc_phpbb_search_results WHERE session_id NOT IN ('00029521b2be05f84e440694c22a2512', '00039f8c17097920737b143af49d02d9', '0006c14db9d7d1d0ff9a6a3ec5a50c40', '00084722bfc8e921e45f1dd3322d9988',
and so on...

Now to my problem with SC: When i start firefox.exe it shows up on the host but it takes minutes to show on the remote. I can blindly move the mouse to the crossclose-button and close firefox. There is no problem when i disable "System HookDll" on the host or when i delete SCHook.dll from sc. I verified that on different machines.

Does anyone know what to do? Is there a setting to disable "System HookDll" within SC?

Thank you very much.
Hulvi