Not working

I have two computors, one stacionary and one laptop, on both there is Windows7/64.
Till some time ago, the SmartFTP was working well on both computors. But approximately one month ago, I cannot use it on my stacionary computor any more. All I get is Root
I have compared the Tools/Properties and there are the same on both computers.
I have deinstalled the program and installed it again, but this was not helping.
I tried to correct this:
but it returns back again each time I try to correct to Can view ....
or in Advanced tab.
Can you, please, help me?
Thanks, regards, Natasa