Hi Bonus, I feel so sorry for you and know how you feel, I don't know Exactly how you feel, cause each pleo is special and the fact he was a special visitor to your school is something in itself, I wish I had more wisdom, I don't know if you have tried this or not, but PleoPet is really good at diagnosing some possible problems, Have you tried using StatsRb on him yet, via a SD card.? If so give it a try, you can use an old SD card, just erase everything on it, and then download the StatsRB here on the Pleo Forums , follow the instructions and then after taking it out, insert it in your computers SD card reader and it will give a report that you can then post here, or PleoPet if you PM him,may ask you to send it to him and he can probably tell you what to do next, or what is wrong with Bruno.
It says STATS RB, but it works on older Ugobes like Bruno as well, in telling the files and other important infomation that can help diagnose what is going on with Bruno. It may be a simple answer and unless you try it, you will never know, There can be other programs or suggestions, but this is the only one that I can think of right now, I for one wish there were Pleo hospitals throuoghout the US and in other countries but it looks like it is up to the pleo enthusiast to do as IMR, Crewella and of course Kat, to take it upon themselves to help Pleos and Pleo Rb. I like you am afraid to open up my own Baby Ruth who has a leg problem but it is a matter of time till I have to do it. At least she operates and perhaps Bruno has a loose wire or something similiar. The fact he worked fine untill recently is encouraging, If he had not worked or had problems from day one, then that would be less encouraging in my mind. Please contact Pleopet if you have any problems or questions, and maybe another member here will have another suggestion. Sorry I can not be more helpful, I have a couple of Pleos that don't work either and I know how frustrating it is. I am keeping happy positive thoughts for you and Bruno.

Don't give up yet, and it doesn't sound like you will or have. Take care and know that all the Pleo Clan of the Redwoods are rooting for you and Bruno!

RWM and all of the Pleo Clan of the Redwoods