Sliding Menu Irritation

[marzi]

Hoping someone can help me. When I am entering a comment in my forum, every time I use the letter p the following menu slides out from the left side and the letter p is blocked from being used (see image). Not sure if it is my version of smf or a package I installed many years ago.
Can anyone help me? 

[Dzonny]

Hello there.

You're still using 1.1 branch?
Which version? Which theme? Url?

[marzi]

Dzonny,
Thank you so much. As I was looking to find which theme I am using I found the source of my problem, a "dhtmlgoodies" script I had installed in the index.template.php file (many years ago) and I am about to remove it.
Thanks again for reaching out.

[Kindred]

But seriously,  update your system.

[Dzonny]

But seriously,  update your system.

Indeed, you should really update as 1.1 branch is a way outdated.