Troubleshooting: Poor Performance with Black Blocks and Stripes in Citrix Sessions
Symptom
In the Citrix session, you sometimes experience a problem with black blocks, frames, or stripes.
Problem
Poor performance is often connected with the delayed or slow refreshing of the screen content.
Solution
->In the IGEL Setup or the configuration dialog in the UMS, activate one of the following parameters or all of them under Sessions > Citrix > Citrix Global > Options:
Use server redraw
Backing store
Deferred screen update mode
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See also Options for an IGEL OS Citrix Session in the manual chapter for Citrix.
If this doesn't work, see also Black Box Next to the Mouse Cursor.