156 Selespeed gears will not select
Hi, I am new to the AO club and I have been experiencing gear problems on the Alfa 156 selespeed, year "03. Sometimes I cannot get any gear when using the gear stick. Eventually I get 1st selected and can drive away, with gears working OK, automatically and with paddles, but still not with the stick. Having parked up for the day, all is now working correct again and I can select all gears with the lever.
The only check I have done is gearbox oil level, and all is OK. Any way forward before going into garage for dignostics?