110 stuck in first gear?gear lever in neutral

Hi folks, Im looking for tips?advice?prayers for the above problem. I don't want to get too rough on it, but it will not select any gear but it seems to be stuck in first. happened suddenly when I pulled up at home. lifted out the floor tunnel but can't see anything obvious. Anyone experienced this before, many thanks in advance. cheers
p,s its a 10 plate

Would help if you listed gearbox and engine...

bankz5152 said:

Would help if you listed gearbox and engine...

Click to expand...

Hi banks
At this moment not certain, but will look in morning, the gearbox has two indented plugs on n/s of box, semi hidden below gear-lever mount bracket. Not the mushroom tops as some have! Thanks for your reply