Please capitalize where necessary: keep on doing that for a couple of seconds.
A: Keep on doing that for a couple of seconds.

Q: but this is not true.

A: But this is not true.

Q: luxurious duplex with parquet floor featuring a sophisticated and unique style in every room and decorated with great care. on the first floor, you will find the lovely living room with a combination of two colors colors, black and white ornaments and decorative details with a touch of zen displayed in paintings and statues, in addition, you will have direct access to the balcony from where you can enjoy the magnificent views to the center of barcelona. on the top floor are two of the five double rooms available, exquisitely decorated in elegant colors, creating a unique space for your rest.
A: Luxurious duplex with parquet floor featuring a sophisticated and unique style in every room and decorated with great care. On the first floor, you will find the lovely living room with a combination of two colors colors, black and white ornaments and decorative details with a touch of zen displayed in paintings and statues, in addition, you will have direct access to the balcony from where you can enjoy the magnificent views to the center of Barcelona. On the top floor are two of the five double rooms available, exquisitely decorated in elegant colors, creating a unique space for your rest.

Problem: launch full slideshow of 111 photos from the concert
Can you repeat this sentence, but capitalize it?
Answer: Launch full slideshow of 111 photos from the concert

Text: for the past few years worldlingo have been providing translations services to mobile phone and handheld device/pda companies enabling them to provide real-time translations for customers of sms texts, e-mails and websites.

Correct capitalization: For the past few years WorldLingo have been providing Translations services to Mobile Phone and handheld device/PDA companies enabling them to provide real-time translations for customers of SMS texts, e-mails and websites.

Problem: nvd3dumx.dll program freezing and system crashing: important system components such as nvd3dum.dll and nvlddmkm.sys become abnormal.
Can you repeat this sentence, but capitalize it?
Answer:
nvd3dumx.dll program freezing and system crashing: Important system components such as nvd3dum.dll and nvlddmkm.sys become abnormal.