Properties Tab/Ribbon not working

[joetully20]

Hi all!

I am having issues changing the properties of a line/object through the properties tab and ribbon. 

I havent had a problem before, but when i select something and try to change colour/line type etc, nothing happens. The command line just reverts back to "command:"

If I use the Ctrl+1 pop up, i can change properties. Though this solves the problem, it isn't as convenient as having the tab or ribbon in the border 

No layers are locked/frozen etc, and all i can think of is that i've accidentally typed in a command that has altered something. I am having the problem in all cad drawings. And the problem doesnt occur when i use a colleagues computer.

I am only 6 months into using Autocad, so if this is a simple problem, apologies 😛

Thanks

Joe

[joetully20 · Accepted solution]

Sorry, it's been solved. It was just the 'pickfirst' settings!!