Help HTC DESIRE incoming SMS delayed - Orange

[htc_owner]

Hi,

I am using HTC desire on Orange and have noticed I recieve sms late.. this goes from 10 minutes to hours late.

I have factory restored, took sim out and put sim back in, restart phone. Everthing I can think off or adviced by Orange.

I noticed when I put my phone on airplane mode and then back on normal mode, any sms that are 'stuck' somwhere, randomly come through.

Any help?