Hello Jude, thanks for prompt reply. Below the answer to your question:
1) Sapgui 7.40 patchlevel 7
2) It happen with sapgui 7.40 with no regards on patch level. It does not happen with sapgui 7.30.
3) All users that perform data entry are affected by the issue.
4) It happen both on normal PC desktop (duale core and 4GB RAM ) and on Citrix. I notice that for example using more powerfull PC like macbook pro with quadcore and 8GB RAM it does not happen. That lead me to suppose sapgui 7.40 is requiring more GPU (graphical cpu) resources to present the data.
Thanks
Roberto