Unknown symbol on desktop

[mpd1]

I discovered this symbol on my desktop. I can not remove it.  It appeared about two weeks ago in the top left corner of my desk top.  I can drag it to any part of the screen  and it will stay there. however, when i shut down or restart it appears in the upper left corner again. I click on it it does not open or do anything. I have tried to deleate it, move to recycle ben nothing seems to effect it.   I ran Trend Miicro virus
scan several times found no problems.

Description of the symbol:

It is a small rectangular box, top part completly shaded and bottom half not shaded in. At times the small box appears completly shaded in.

Any help or ideas would be appreciated.

[patio]

Can you post a screenshot ? ?

[mpd1]

Thanks for the response,

There does not seem to be a way to post a screen shot, any ideas let me know.

[mpd1]

I was able to post the screen shot see attached. The object or symbol is the small blue rectangle on the bottom of the desktop.

Thanks

[getting disk space - attachment deleted by admin]

[Broni]

What happens when you right click on it?

[CBMatt]

If you move your arrow to one of the sides or corners, does it turn into the double arrows pointing in opposite directions?

[Broni]

Also, it may help, if you post a screenshot of the icon, itself, possibly magnified.
To get a screenshot, you may want to install free version of ScreenHunter: http://wisdom-soft.com/products/screenhunter.htm
You may magnify it, using MS Paint.

[mpd1]

I tried right clicking on it, the only thing that happens is the shading inside the box either darkens or lightens.

As for moving the arrrow to the sides or corner, nothing changes.

[Broni]

Also, it may help, if you post a screenshot of the icon, itself, possibly magnified.
To get a screenshot, you may want to install free version of ScreenHunter: http://wisdom-soft.com/products/screenhunter.htm
You may magnify it, using MS Paint.

[dairyman]

Download HijackThis.
Do a system scan and save a log file.
Post your log file at the Computer Viruses and Spyware board.

(I have finally finished reading HijackThis Tutorial at AumHa. This time, I'll try to do my best when reading the log)

[CBMatt]

(I have finally finished reading HijackThis Tutorial at AumHa. This time, I'll try to do my best when reading the log)

You are not qualified to analyze logs until you have gone through the proper training of a HijackThis course.  Reading a tutorial is not enough.  How many times does this need to be said?

[dairyman]

You are not qualified to analyze logs until you have gone through the proper training of a HijackThis course.  Reading a tutorial is not enough.  How many times does this need to be said?

OK, I won't read any HJT log's yet.
I am taking a course on how to read HJT logs.