Skips to next line when it's dash?

When I change it to unserscore it does the whole line..

Any idea?

Hi NewmanJerry,

Which product you are using? Can you explain your issue in detail?

Regards,

Ken 

I thought I posted a print screen of the error

I'm using the CuteWebUI.AjaxUploader.dll

New Link Text

I have a file named xxx_12345678_18_28.xxx.zip 

and

xxx_1234678_03-50.xxx.zip 

The one with the dash goes to the next line as it's downloading.

Would prefer that it stays in one line.

Is there a property and can disable/enable it?