99 Disco Keyless entry, Hit and miss or wierd science!

I recently purchased a 99 disco SD I believe and the previous caretakers gave me no manual and only 1 remote fob. I don't know if it's human error or what but it seems no matter what sequence I use to gain entry it;s totally hit and miss. When I click the keyless padlock icon on the fob once, I sometimes get a lockin sound but nothin happens, and other times all but the driver door locks. There are times when I get a horn chirp and all locks go down. Sometimes I try the key manually and they all go down and the alarm sets. Other times I go manually and can;t even depress the driver door lock. I fear there is some major gremlins at work or I'm just totally stupid ( thanks to no literature). I've got a complete CD set coming which hopefully will get me on the right track. Is there some method of resetting/re-initializing the lock system to square one or would that matter. WHile I await my CD arrival is there a resource that shows all the sequences for this remote. Any help is much apppreciated.