Please capitalize where necessary: thankful to the end
A: Thankful to the end

Q: this is a growing problem as more isps see caching as a way of decreasing net traffic.

A: This is a growing problem as more ISPs see caching as a way of decreasing net traffic.

Q: it was quite mysterious why cd4 t cell population shrank in hiv-infected patients.
A: It was quite mysterious why CD4 T cell population shrank in HIV-infected patients.

Problem: they do not know that nick fell into the hands of pirates, and they are prepared to torture him to find out the secret mielofon.
Can you repeat this sentence, but capitalize it?
Answer: They do not know that Nick fell into the hands of pirates, and they are prepared to torture him to find out the secret mielofon.

Text: the new garage door works.

Correct capitalization: The new garage door works.

Q: fwcfg.dll program freezing and system crashing: important system components such as fundisc.dll and fwpuclnt.dll become abnormal.
A:
fwcfg.dll program freezing and system crashing: Important system components such as fundisc.dll and FWPUCLNT.DLL become abnormal.