Dear Dave Attached are the files that you need for reprogramming of the 340B108 to its (hopefully :-) original state. According to my records, the instrument was originally programmed as follows: FLASH - UT340 V 1.03 (code in file: Flash. com) (See attached file: FLASH.COM) FPGA version: V1.1 (code in file: UTLCA. com) (See attached file: UTLCA.COM) However, you told me that you think that the old version displayed by the instrument was 3.5. Well, that would be correctly V 3.05. It is possible that the unit was really upgraded to this version when it was later serviced at Utex. In that case the file that you need is: FLASH - UT340 V 3.05 (code in file: Flash.com) (See attached file: FLASH.COM) I would suggest, that you install first the version that you think they had (this is the newer, V 305) and see how it works. Only if you have any problems try the other file. In any case let me know how it went and what they end up with so I can update my records. Regards Milos Milos Mlcoch Utex Scientific Instruments Inc. 2319 Dunwin Drive, Unit 8 Mississauga, Ontario, Canada L5L 1A3 Tel: (905) 828-1313 Fax: (905) 828-0360 Email: MMlcoch@utex.com Website: http://www.utex.com