[SOLVED] White Line in FrontEnd after leaving GroovyMame

[Max_FS]

Dear guys,

after changing from ArcadeVGA5000 GPU to a Sapphire Radeon HD 6450 with CRT-Emudriver I encounter a strange problem.
When leaving a game in Groovymame  there suddenly appears a white horizontal line in my frontend and also on the second screen I use as a dynamic marquee. I attached a picture to demonstrate.
It seems that it only happens when my CRT, which is a Sony Trinitron TV, is connected via SCART-Cable to the graphic card. When a LCD is connected via SCART to the graphics card, this did not happen yet.
Does anyone have an idea what happened?

My setup is as follows:
ASUS Z87-A Mainboard
Intel Pentium G3258 CPU
Sapphire Radeon HD 6450 GPU with CRT EMU-Driver
Windows 7
Sony Trinitron CRT as first screen 
Stretched LCD as second screen
GroovyMame (version 0.214)
AttractMode (version 2.6.0)

Any help is highly appreciated.

Best regards
Max

[Max_FS]

Short addition:
Now in one case instead of the white line it was the windows taskbar that appeared in the middle of the screen of the frontend...

[Max_FS]

Is this question deemed to be a GM issue so a log is needed?
Then I am sorry I forgot to provide it and should do this in addition to my question.

[Substring]

Peharps no one faced this issue and has no clue on how to solve that ?

[keilmillerjr]

Short addition:
Now in one case instead of the white line it was the windows taskbar that appeared in the middle of the screen of the frontend...

I do not have a resolution to the problem. Perhaps explorer switched resolutions to around 240p, and then had issues switching back? A work around would be to not run explorer. You don’t need it in an arcade machine unless you are running admin tasks. At that time, you can always launch it when in 480i.

[Max_FS]

@Substring: You may be right, it seems that this is not a very common issue...
@keilmillerjr: Good idea, I shall try this. It is planned to shell directly to Attractmode when I am finished with everything.
Many thanks!

[Max_FS]

@keilmillerjr: As announced a long time ago, I tried your suggestion. It just works fine. So again, many thanks.