Wireless or wired, a keyboard should behave the same, until, perhaps you install the CD (or downloads) associated with that particular model keyboard. Many, if not all, modern multi-purpose keyboards come with, or you can download, an application that enables additional functions, such as multimedia controls, instant access to email and browser, etc. You might want to see if there is a Logitech application running in the background on your PC. Ctrl + Alt + Del, Task Manager
That application may have altered the F key functions on your machine.